 
CharSequence[] items = {"相冊", "相機"}; 
new AlertDialog.Builder(this) 
.setTitle("選擇圖片來源") 
.setItems(items, new OnClickListener() { 
public void onClick(DialogInterface dialog, int which) { 
if( which == SELECT_PICTURE ){ 
Intent intent = new Intent(Intent.ACTION_GET_CONTENT); 
intent.addCategory(Intent.CATEGORY_OPENABLE); 
intent.setType("image/*"); 
startActivityForResult(Intent.createChooser(intent, "選擇圖片"), SELECT_PICTURE); 
}else{ 
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 
startActivityForResult(intent, SELECT_CAMER); 
} 
} 
}) 
.create().show(); 

處理圖片，方法一，直接處理返回圖片：
注釋：
1、網(wǎng)上有說明，直接處理返回的圖片是被系統(tǒng)壓縮過的，不過自己在測試的過程并沒有區(qū)別；
2、如果用戶不斷的重新獲取圖片的話，必須把現(xiàn)在的Bmp內(nèi)存釋放，否則會報錯！ bmp.recycle()。

復(fù)制代碼代碼如下:

 
protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
super.onActivityResult(requestCode, resultCode, data); 
if(resultCode == RESULT_OK){ 
//選擇圖片 
Uri uri = data.getData(); 
ContentResolver cr = this.getContentResolver(); 
try { 
if(bmp != null)//如果不釋放的話，不斷取圖片，將會內(nèi)存不夠 
bmp.recycle(); 
bmp = BitmapFactory.decodeStream(cr.openInputStream(uri)); 
} catch (FileNotFoundException e) { 
// TODO Auto-generated catch block 
e.printStackTrace(); 
} 
System.out.println("the bmp toString: " + bmp); 
imageSV.setBmp(bmp); 
}else{ 
Toast.makeText(SetImageActivity.this, "請重新選擇圖片", Toast.LENGTH_SHORT).show(); 
} 
} 

處理圖片，方法二，獲得圖片的地址再處理：

復(fù)制代碼代碼如下:

 
protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
super.onActivityResult(requestCode, resultCode, data); 
if(resultCode == RESULT_OK){ 
Uri uri = data.getData(); 
String [] proj={MediaStore.Images.Media.DATA}; 
Cursor cursor = managedQuery( uri, 
proj, // Which columns to return 
null, // WHERE clause; which rows to return (all rows) 
null, // WHERE clause selection arguments (none) 
null); // Order-by clause (ascending by name) 
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA); 
cursor.moveToFirst(); 
String path = cursor.getString(column_index); 
bmp = BitmapFactory.decodeFile(path); 
System.out.println("the path is :" + path); 
}else{ 
Toast.makeText(SetImageActivity.this, "請重新選擇圖片", Toast.LENGTH_SHORT).show(); 
} 
} 